One of my tasks, is to review a large list of small >1kb FTP files, generated nightly.
The size of the file helps determine what actions I need to do, eg I can ignore files of 64bytes , but need to check the contents of files of 133bytes.

The Tools/Settings/Interface/Size/Size display format, was set to 'Automatic', and the file size display was showing 1kb for all the files, whereas previously in SmartFTP 2.5, it showed bytes.

I then tried changing the 'Size display format' to 'Bytes', but the file display still showed kilobytes, rather than bytes.
I tried closing SmartFTP and reloading, the setting stayed the same, as did the file display problem.

This is probably a minor UI problem, which is unlikely to effect many people, but it does effect how I work, myself! heh.